* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: #151515;
  background: #ffffff;
  line-height: 1.6;
}

img {
  max-width: 100%;
  display: block;
  border-radius: 22px;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(1120px, 92%);
  margin: 0 auto;
}

/* NAVIGATION */

.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid #eeeeee;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.04);
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0;
}

.nav-logo {
  font-size: 18px;
  font-weight: 900;
  color: #111111;
}

.nav-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

.nav-links a {
  padding: 9px 14px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  color: #333333;
  background: #fff4f4;
  transition: 0.2s ease;
}

.nav-links a:hover {
  background: #ff6b6b;
  color: #ffffff;
}

/* HERO */

.hero {
  padding: 70px 0 60px;
  background:
    radial-gradient(circle at top right, #ffe1e1 0, transparent 34%),
    linear-gradient(135deg, #fff7f7 0%, #ffffff 70%);
}

.hero-content {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 44px;
  align-items: center;
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.badge {
  display: inline-block;
  padding: 9px 16px;
  border-radius: 999px;
  background: #ffe5e5;
  color: #111111;
  font-size: 14px;
  font-weight: 800;
  margin-bottom: 18px;
}

.logo {
  width: 390px;
  max-width: 100%;
  margin: 0 auto;
  border-radius: 999px;
  box-shadow: 0 18px 45px rgba(255, 107, 107, 0.22);
}

h1,
h2,
h3 {
  line-height: 1.15;
  margin-top: 0;
  color: #111111;
}

h1 {
  font-size: clamp(36px, 5vw, 58px);
  letter-spacing: -1.4px;
  margin-bottom: 18px;
}

h2 {
  font-size: clamp(28px, 3vw, 40px);
  letter-spacing: -0.6px;
  margin-bottom: 28px;
  text-align: center;
}

h3 {
  font-size: 21px;
  margin-bottom: 10px;
}

.subtitle {
  font-size: 19px;
  color: #4a4a4a;
  margin: 0 0 18px;
  max-width: 660px;
}

.section-subtitle {
  max-width: 760px;
  margin: 0 auto 34px;
  text-align: center;
  color: #555555;
  font-size: 18px;
}

/* LEVEL CHOICE */

.level-choice {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-top: 34px;
}

.level-card {
  background: #ffffff;
  border: 1px solid #ffe1e1;
  border-radius: 28px;
  padding: 28px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.05);
  transition: 0.25s ease;
}

.level-card:hover {
  transform: translateY(-4px);
  border-color: #ffbcbc;
}

.level-card span {
  display: block;
  font-size: 38px;
  font-weight: 900;
  color: #ff6b6b;
  margin-bottom: 10px;
}

.level-card p {
  margin: 0;
  color: #444444;
}

/* BUTTONS */

.btn {
  display: inline-block;
  margin-top: 12px;
  padding: 15px 26px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 800;
  text-align: center;
  transition: 0.2s ease;
}

.btn-primary {
  background: #ff6b6b;
  color: #ffffff;
  box-shadow: 0 10px 22px rgba(255, 107, 107, 0.28);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(255, 107, 107, 0.34);
}

/* SECTIONS */

.section {
  padding: 74px 0;
}

.alt {
  background: #fafafa;
}

.highlight {
  background:
    radial-gradient(circle at top left, #ffe3e3 0, transparent 35%), #fff1f1;
}

.center {
  text-align: center;
}

/* CARDS */

.cards {
  display: grid;
  gap: 22px;
}

.cards.two {
  grid-template-columns: repeat(2, 1fr);
}

.cards.three {
  grid-template-columns: repeat(3, 1fr);
}

.cards.four {
  grid-template-columns: repeat(4, 1fr);
}

.card {
  background: #ffffff;
  border: 1px solid #eeeeee;
  border-radius: 26px;
  padding: 26px;
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.045);
}

.card p {
  color: #4a4a4a;
  margin-bottom: 0;
}

.product-card {
  position: relative;
  overflow: hidden;
}

.product-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 6px;
  background: #ff6b6b;
}

.featured-card {
  border: 2px solid #ffb5b5;
  background: linear-gradient(180deg, #fff7f7 0%, #ffffff 100%);
}

.mini-badge {
  display: inline-block;
  background: #ff6b6b;
  color: #ffffff;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  margin-bottom: 14px;
}

.product-card ul {
  padding-left: 20px;
  margin: 18px 0;
}

.product-card li {
  margin-bottom: 9px;
  color: #333333;
}

.price {
  display: inline-block;
  font-size: 30px;
  font-weight: 900;
  color: #ff6b6b;
  margin: 4px 0 8px;
}

.note {
  color: #555555;
  background: #fff6f6;
  padding: 14px 16px;
  border-radius: 18px;
}

/* ABOUT */

.about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 44px;
  align-items: center;
}

.about h2 {
  text-align: left;
}

.about p {
  color: #444444;
  font-size: 17px;
}

/* B2 */

.b2-box {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 28px;
  align-items: start;
}

.b2-list {
  display: grid;
  gap: 18px;
}

.b2-item {
  background: #ffffff;
  border-radius: 22px;
  padding: 22px;
  border: 1px solid #ffdede;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.04);
}

.b2-item p {
  margin-bottom: 0;
}

/* STEPS */

.steps {
  display: grid;
  gap: 16px;
  max-width: 780px;
  margin: 0 auto;
}

.step {
  display: flex;
  align-items: center;
  gap: 16px;
  background: #ffffff;
  border: 1px solid #eeeeee;
  border-radius: 22px;
  padding: 18px 20px;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.04);
}

.step span {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #ff6b6b;
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  flex-shrink: 0;
}

.step p {
  margin: 0;
  color: #333333;
}

/* TRUST */

.trust-block {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 54px;
}

.trust-text h2 {
  text-align: left;
}

.trust-text p {
  color: #444444;
  font-size: 17px;
}

.certificates {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.cert-img {
  width: 100%;
  border-radius: 18px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.08);
}

/* FEEDBACK */

.review-subtitle {
  max-width: 700px;
  margin: 0 auto 30px;
  color: #555555;
  font-size: 17px;
}

.review-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 34px;
}

.review-img {
  width: 100%;
  border-radius: 20px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.08);
  transition: 0.25s ease;
}

.review-img:hover {
  transform: translateY(-4px);
}

.review-box {
  display: flex;
  gap: 18px;
  align-items: center;
  max-width: 720px;
  margin: 0 auto;
  padding: 22px;
  border-radius: 24px;
  background: #fff6f6;
  border: 1px solid #ffe1e1;
  text-align: left;
  transition: 0.2s ease;
}

.review-box:hover {
  transform: translateY(-2px);
}

.review-icon {
  font-size: 24px;
  flex-shrink: 0;
}

.review-box h3 {
  margin-bottom: 6px;
}

.review-box p {
  margin: 0;
  color: #555555;
}

/* FINAL CTA */

.final-cta {
  background: #111111;
  color: #ffffff;
}

.final-cta h2 {
  color: #ffffff;
}

.final-cta p {
  color: #eeeeee;
  max-width: 650px;
  margin: 0 auto 18px;
  font-size: 18px;
}

/* FOOTER */

.footer {
  padding: 26px 0;
  border-top: 1px solid #eeeeee;
  text-align: center;
  color: #666666;
  font-size: 14px;
}

.footer a {
  color: #ff6b6b;
  font-weight: 700;
}

/* MOBILE */

@media (max-width: 900px) {
  .hero {
    padding: 46px 0 50px;
  }

  .hero-content,
  .about,
  .trust-block,
  .cards.two,
  .cards.three,
  .cards.four,
  .level-choice,
  .b2-box {
    grid-template-columns: 1fr;
  }

  .hero-text {
    text-align: center;
  }

  .subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .about h2,
  .trust-text h2 {
    text-align: center;
  }

  .section {
    padding: 56px 0;
  }

  .logo {
    width: 280px;
  }

  .review-gallery {
    grid-template-columns: 1fr;
    max-width: 320px;
    margin-left: auto;
    margin-right: auto;
  }

  .certificates {
    max-width: 420px;
    margin: 0 auto;
  }

  .nav-content {
    flex-direction: column;
    gap: 12px;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 28px, 1120px);
  }

  .nav-content {
    padding: 10px 0;
  }

  .nav-links {
    gap: 8px;
    justify-content: center;
  }

  .nav-links a {
    font-size: 12px;
    padding: 7px 10px;
  }

  .badge {
    font-size: 12px;
    padding: 8px 12px;
  }

  h1 {
    font-size: 34px;
  }

  h2 {
    font-size: 27px;
  }

  h3 {
    font-size: 20px;
  }

  .subtitle {
    font-size: 17px;
  }

  .card {
    padding: 22px;
    border-radius: 22px;
  }

  .step {
    align-items: flex-start;
  }

  .review-box {
    flex-direction: column;
    text-align: center;
  }

  .certificates {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .level-card {
    text-align: center;
    padding: 22px;
  }

  .level-card span {
    font-size: 30px;
  }

  .section-subtitle {
    font-size: 16px;
  }
}